Physics

# If momentum P, area A and time T are taken to be fundamental quantities, then the energy has the dimensional formula

$PA^{1/2}T^{-1}$

##### SOLUTION

You're just one step away

Single Correct Medium Published on 18th 08, 2020
Questions 244531
Subjects 8
Chapters 125
Enrolled Students 218

#### Realted Questions

Q1 Single Correct Medium
A beaker  filled with liquid, is placed in the pan of a spring balance. If you dip your finger in it, the reading of the balance will be  ?
• A. increased
• B. unchanged
• C. decreased
• D. may increase or decrease according to the nature of liquid

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q2 Single Correct Medium
The value of $\sqrt { 2 }$ in correct significant digits is :
• A. 1.414
• B. 1.4
• C. 1.0
• D. 1

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q3 Single Correct Medium
In the formula $X = 5YZ^2$, X and Z have dimensions of capacitance and magnetic field, respectively. What are the dimensions of Y in SI units ?
• A. $[M^{-2} L^{-2} T^6 A^3]$
• B. $[M^{-1} L^{-2} T^4 A^2]$
• C. $[M^{-3} L^{-2} T^8 A^4]$
• D. $[M^{-2} L^0 T^{-4} A^{-2}]$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q4 Single Correct Medium
If length and breadth of a rectangle are $\ell=(10.0\pm0.2)m$ and $b=(15.0\pm0.9)m$, then maximum percentage error in its area is
• A. $2\%$
• B. $4\%$
• C. $8\%$
• D. $6\%$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q5 Single Correct Medium
Which of the following functions of $A$ and $B$ may be performed if $A$ and $B$ possess different dimensions ?
• A. $\displaystyle \frac {A}{B}$
• B. $\displaystyle A + B$
• C. $\displaystyle A - B$
• D. $None$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020